Lawn sprinkler



March 23, 1943.

J. H. WILSON 2,314,675

LAWN SPRINKLER Filed Sept. 6, 1941 5 Sheets-Sheet 1 'III'IIIIT /4 /4 y. 4. (joi 14415070 xii/army March 23 19 3 J. H. WILSON 2,31 ,6 5

LAWN SPRINKLER Filed Sept. 6, 1941 3 Sheets-Sheet 2 Inventor Ammey March 23,1943. J. H. WILSON 2,314,675

LAWN SPRINKLER Filed Sept. 6, 1941 3 Sheets-Sheet 3 Z7 Z6 Z9 I v y Inventor A kjkn/ f7. Mia-ow Attorney Patented Mar. 23, 1943 'FATEN'E' @FFKQE LAWN SPRINKLER John H. Wilson, North Platte, Nebr., assignor to Automotive Sprinkler Company, North Platte,

Nebr.

2 Claims.

This invention relates to new and useful improvements in lawn sprinklers and more particularly to an automotive traveling sprinkler, the same being an improvement on my Patent No. 2,152,425, issued March 28, 1939.

The principal object of the present invention is to provide an automotive type lawn sprinkler which will have fewer moving parts and have these parts more compact and accessible than can be found in any machine of this character now on the market.

Another important object of the invention is to provide a sprinkler machine of the character stated which is positive acting and substantially fool-proof in operation.

Other objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:

Figure 1 represents a top plan view of the machine.

Figure 2 is a side elevation.

Figure 3 is a longitudinal sectional view on line 33 of Figure 1.

Figure 4 is a cross-sectional view taken substantially on line 44 of Figure 1.

Figure 5 is a front elevational view of the machine.

Figure 6 is a horizontal sectional view taken substantially on line 6-45 of Figure 3.

Figure '7 is a side elevational view of a slightly modified form of the machine.

Referring to the drawings wherein like numerals designate like parts, it can be seen that the numeral 5 denotes an elongated narrow body structure having a duct 6 extending forwardly therein from a threaded hose attachable nipple l at the rear end thereof. At the forward portion of the body 5 is a chamber 8 normally closed by plug 9 at the lower end thereof and into this leads the duct 6.

A shaft I is disposed through the rear portion of the body and is held by set screw ll against rotation or longitudinal shifting. Master wheels 12 are provided on the ends of the shaft [0 and each of these master Wheels I2 has a traction belt 13 trained over the same and provided with spurs l4. These spurs are of a shape and size that will permit sufiicient penetration of the lawn to cause traction of the machine.

Each of these belts I3 is further trained over a corrugated roll 15 on a corresponding shaft l6. These shafts lead to a differential mechanism generally referred to by numeral I! and shown in Figure 6 in detail. In this differential mechanism, each of the shafts i6 is provided with a beveled gear 18 and these gears l8 mesh with beveled gears I 9, l9 mounted on pins 29 journaled in a ring gear 2| which meshes with a worm structure 22 on a vertical hollow shaft 23, which shaft extends downwardly through a case structure 24 to terminate in a head structure 25 in the upper portion of the chamber 8. Suitable packing glands can be provided between this head and upper end of the chamber 8.

The upper end of the hollow shaft 22 has a T-head 26 from which extend hollow radial arms 21, 28 each provided with a curved discharge and constructed tip 29.

A yoke 30 has a shank member 3| extending upwardly through an opening in the forward offset portion 32 of the body 5 and a pin or cotter key 3 is provided and disposed through the upper end of the shank 3! to prevent displacement of the shank from the body extension 32. A grooved cast wheel 34 is provided and suitably mounted in the yoke 3i), and if desired, this wheel may ride along the hose 34 which supplies water to the duct 6, thus using the hose as a guide for the machine.

Obviously, when the Water supply is turned on the pressure of the water will cause rotation of the radial arms 21, 28 and the worm 22 will drive the gear 2! and in turn the shafts Hi, It of the differential mechanism which in turn will drive the rolls l5 and the traction belt I3. Thus, the action of the sprinkler will drive the machine until such time as the water supply is turned off.

'A modification of the invention is shown in Figure 7 where idler rolls 36 are supported by a bracket or brackets 31 beneath the body of the machine to accommodate the traction webs l3a in addition to the corresponding corrugated rolls l5a.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

1. A sprinkler machine comprising a body, a pair of traction wheels, traction belts disposed over the wheels, a conduit for water under pressure, a vertically disposed and rotary hollow shaft in communication with the conduit, sprinkler arms projecting from the upper end of the shaft, drive means between the shaft and the traction for the introduction of water from a hose line thereinto, an open back casing arising from said body above said chamber, a hollow vertical shaft journaled in said casing and communicating at its lower end with said chamber, said shaft having a worm section thereon within said casing, sprinkler arms on the upper ends of said shaft for rotating the same, a pair of rear traction Wheels, and means to drive said wheels by said worm including a worm wheel mounted on the.

body above the same to extend into said casing and mesh with said worm.

' JOHN H. WILSON. 

